ask and then you might have a goldman sachs or large law firm that buys bandwidth on that glass. so it's, you know, we often talk about b the information superhighway as if the network itself were the highway. i hike to think of it more -- i like to think of it more that a given network is a car chugging along the highway side by side with other networks because there's definitely a layering going on that's crucial to understanding the way in which the networks of the internet operate individually, on a global basis, but then, of course, have to interconnect in very specific places. >> host: is there any fear that messages or whatever is being carried on those networks, through those networks could get lost such as if you took the wrong off ramp on a highway? >> guest: certainly, yeah. i mean, you know, they are encoded with their address, you know, to continue the metaphor, and sometimes those end up in the wrong place usually because, you know, it's based on trust. the routeing system is based on trust. it's based on a network saying i'm over here, and here are all the networks